Decking options and costs typically range from $25 to $100 per square foot installed, depending on board material, deck height, railings, and site access. A basic 300-square-foot pressure-treated deck may cost about $9,000, while composite or hardwood boards and added features can push the total above $20,000.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed deck | $25/sq ft | $45/sq ft | $100/sq ft | Material, framing, and labor vary |
| 300-square-foot project | $7,500 | $13,500 | $30,000 | Assumes new construction |
| Pressure-treated boards | $25/sq ft | $35/sq ft | $50/sq ft | Installed; basic layout |
| Composite boards | $45/sq ft | $65/sq ft | $90/sq ft | Installed; brand and features affect price |
What a 300-Square-Foot Deck Usually Costs
A straightforward ground-level deck measuring 15 by 20 feet often costs $7,500-$15,000 with pressure-treated lumber, or $13,500-$24,000 with midrange composite boards. Premium composite, hardwood, stairs, or a raised structure can bring a similar-size project to $30,000 or more. Prices assume new framing, standard access, and no major grading or structural repairs.
For a basic build, a useful planning range is $30-$50 per square foot; elaborate or elevated decks can exceed $80 per square foot. Local labor rates, material availability, and the amount of railing usually matter more than the deck’s footprint alone.
How Boards, Framing, and Labor Shape a Deck Quote
Quotes may bundle costs, but separating the main work helps identify what is included. Framing lumber, footings, fasteners, and installation labor can be substantial even when the surface boards are inexpensive. A contractor may also charge for delivery, debris removal, or permit work.
| Quote component | Typical range | Pricing basis | What changes the charge |
|---|---|---|---|
| Deck boards | $4-$20 | Per sq ft of surface | Species, grade, and composite line |
| Framing and footings | $8-$25 | Per sq ft | Height, span, soil, and load requirements |
| Installation labor | $10-$30 | Per sq ft | Layout complexity and crew rates |
| Railings and stairs | $30-$100 | Per linear ft of railing | Material, height, and stair design |
| Removal and disposal | $500-$2,500 | Per project | Deck size, access, and disposal fees |
Assumptions: U.S. residential pricing, standard materials, and normal site access; ranges are estimates, not fixed national rates. Labor estimates can be compared with ; crews commonly bill an effective $50-$100 per worker-hour through a project quote.
Which Deck Materials Change the Per-Square-Foot Price?
Pressure-treated pine is usually the lowest-cost surface, while cedar and redwood cost more and require regular sealing or staining. Composite boards generally cost more upfront but do not need routine staining. Hardwood options such as ipe can be especially costly because of board prices, specialized fasteners, and slower installation.
Typical installed ranges are $25-$50 per square foot for pressure-treated lumber, $35-$65 for cedar, $45-$90 for composite, and $60-$100 for hardwood. These figures cover an ordinary build; premium railing systems and complex framing may add to any material choice.
How Much Deck Labor Adds Across U.S. Regions
Labor rates and contractor demand can shift the same design’s quote. Dense coastal metro areas often run 15%-30% above a national midrange estimate, while lower-cost rural markets may be 10%-20% below it. Regional differences also reflect permits, transport distance, and the availability of skilled crews.
For a 300-square-foot project, a $13,500 midrange estimate might become roughly $15,500-$17,500 in a high-cost metro, or about $10,800-$12,200 in a lower-cost market. These are planning comparisons, not guaranteed local bids. Comparing at least three itemized quotes from contractors working in the same area provides a more reliable benchmark.
What Stairs, Railings, and Tear-Off Add to the Bill
Railings commonly add $30-$100 per linear foot, with basic wood at the lower end and metal, cable, or glass systems toward the high end. A typical set of deck stairs may add $500-$2,000, depending on width, height, landing needs, and railings. Removing an old deck can add $500-$2,500, with difficult access or heavy disposal requirements increasing the charge.
Permits and inspections vary by city and project scope; allow roughly $100-$1,000 where required. A deck more than 30 inches above grade may trigger railing or stair rules in many jurisdictions, but local building departments set applicable requirements. Confirm permits and code details before comparing final bids.
Pressure-Treated Versus Composite Deck Pricing
For a 300-square-foot surface, pressure-treated lumber may cost about $7,500-$15,000 installed, compared with roughly $13,500-$27,000 for composite. Composite often reduces ongoing staining and sealing expenses, but it does not eliminate cleaning or possible board replacement. Pressure-treated wood generally needs periodic washing, sealing, or staining to limit weather damage.
The lower upfront quote is not always the lower long-term expense. Compare expected upkeep, warranty terms, and board replacement costs over the planned ownership period. A premium composite upgrade may not pay off for a short-term owner, while reduced maintenance can matter more for a long-held home.
Three Deck Quotes for Common Backyard Sizes
These examples use ordinary access and simple rectangular layouts; they exclude unusual grading, permit costs, and major demolition. Actual quotes vary with region and code requirements.
| Project example | Material and scope | Estimated total | Approximate rate |
|---|---|---|---|
| Small 120-sq-ft platform | Pressure-treated, ground-level | $3,600-$6,000 | $30-$50/sq ft |
| Standard 300-sq-ft deck | Midrange composite, basic railing | $16,500-$24,000 | $55-$80/sq ft |
| Large 400-sq-ft raised deck | Composite, stairs, extensive railing | $28,000-$40,000 | $70-$100/sq ft |
Where Homeowners Can Trim a Deck Budget Safely
A simple rectangle uses framing and boards efficiently; angles, built-in benches, multiple levels, and custom borders add labor and material waste. Keeping the deck close to grade can reduce stair, railing, and footing costs where site conditions and local rules allow. Choosing standard board colors and dimensions may also avoid premium product charges.
Get quotes with the same dimensions, material grade, railing length, stair count, demolition scope, and permit assumptions. Ask whether the existing framing can safely remain before paying for a full replacement, but do not reuse components that fail inspection or show rot. Clear scope and comparable bids are the most dependable ways to control the final deck price.